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What causes a sealed bag of vegetables to expand when it is heated in a microwave?
the temperature of gas changes (APEX) :)
What causes a sealed bag of vegetables to expand when its heated in the microwave?
The temperature of the gas changes
What causes a sealed bag of vegetables to expand?
A sealed bag of vegetables can expand due to the buildup of gas produced by bacteria present inside the bag. This gas is produced as a result of the vegetables undergoing fermentation, which produces carbon dioxide as a byproduct. If the bag is not properly vented, the trapped gas can cause the bag to expand.
Why does the lid of a sealed container pop off when heated in the microwave for long time?
The lid of a sealed container pops off in the microwave because heating causes the contents to expand and generate steam. As the temperature rises, the pressure inside the container increases due to the trapped steam, eventually surpassing the strength of the lid's seal. When the pressure becomes too great, the lid is forced off to release the steam, resulting in a popping effect. This phenomenon highlights the importance of allowing steam to escape from sealed containers during microwaving to prevent accidents.
What will happen in a sealed bottle when the air is heated and then allowed to cool?
As the air inside the sealed bottle is heated, it will expand and increase in pressure. When the air is allowed to cool, it will contract and decrease in pressure. This change in pressure can potentially cause the bottle to deform or even explode if the pressure builds up too much.
Can Tupperware containers that are vacuum sealed be safely used in the microwave?
No, Tupperware containers that are vacuum sealed should not be used in the microwave as the vacuum seal can create pressure and cause the container to explode. It is not safe to microwave vacuum-sealed Tupperware containers.
What will happen if a glass of bottle filled with a liquid sealed tightly and heated?
If heated to and above boiling point the pressure in the bottle would begin to rise. Depending on how much it is heated it might either stay like that, or the increased pressure might cause the bottle to burst.
Why is it safe to put those little chef boyardee cans in the microwave but yet they say no metal?
Chef Boyardee cans are typically made of a thin metal that is designed to withstand heating, but it's important to note that they should not be microwaved while sealed. When heated in the microwave, the metal can cause sparks and potentially damage the microwave. It's safe to microwave the contents if transferred to a microwave-safe dish, as this eliminates the risk associated with metal in the microwave. Always follow the manufacturer's instructions for safe usage.
How do you microwave popcorn?
I understand that there are special sealed containers of popcorn suitable to cook in a microwave. Apparently, there are instructions on the label. The reason why special sealed containers are used is to prevent the popcorn shooting all over the inside of the microwave. One website stated that it was possible to microwave popcorn placed inside a brown paper bag!
Who heated broth in sealed flasks?
Louis Pasteur was the scientist who demonstrated that microorganisms in broth could be killed by heat. He conducted experiments with sealed flasks to show that the growth of microorganisms did not occur when they were exposed to heat.
How does density vary with the temperature?
This depends upon the circumstances. For example, if a gas is heated inside a sealed container, the density remains the same (the gas cannot expand inside a sealed container) but the pressure increases. Eventually the container will explode, if sufficiently heated, at which point the density will decrease. Another example would be, to heat ice so that it melts into water; water is denser than ice, so in this case heating increases density. There are various other possibilities. In most cases, heat causes things to expand and become less dense.
How does density density vary with temperature?
This depends upon the circumstances. For example, if a gas is heated inside a sealed container, the density remains the same (the gas cannot expand inside a sealed container) but the pressure increases. Eventually the container will explode, if sufficiently heated, at which point the density will decrease. Another example would be, to heat ice so that it melts into water; water is denser than ice, so in this case heating increases density. There are various other possibilities. In most cases, heat causes things to expand and become less dense.
